Rectangular roof lanterns in Islington
Planning an extension in Islington? A rectangular roof lantern is one of the quickest ways to bring daylight into the middle of the room. Use the configurator for a guide price, then send your kerb size for a fixed quote and delivery date.
Price a rectangular roof lantern for Islington
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Rectangular roof lanterns for Islington homes
The classic double-hipped lantern: a ridge, four sloping sides and the most size choice.
On the shortest day Islington gets about 7h 49m of daylight, with the sun only 15.0° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- The most size options of any lantern shape
- Suits kitchen-diners and rear extensions
- Ridge along the long axis, four glazed slopes
Delivery and fitting in Islington
Delivery to N1 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
Fitting in Islington can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to N1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Rectangular roof lantern prices for Islington
Guide prices for common rectangular roof lantern sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1500 × 2000 mm | 3.00 m² | £1,995–£2,295£1,662 ex VAT from | Configure |
| 1500 × 2500 mm | 3.75 m² | £2,295–£2,695£1,912 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £3,195–£3,695£2,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,095–£4,795£3,412 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with self-cleaning double glazing in a stock colour. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for Islington
For homes in England, a new or replacement rooflight should achieve a U-value of 2.2 W/m²K or better in the horizontal position, under Approved Document L.
Planning-wise, a lantern on a new extension is judged as part of that extension, while one added to an existing roof can fall outside permitted development if it stands more than 150 mm proud.
Building regulations in Islington are checked by your local authority building control team or a registered building control approver. Replacing a rooflight in an existing home is building work. Installers registered with a competent person scheme can self-certify; otherwise building control must be involved.
Sources: Approved Document L, GOV.UK · Planning Portal
Questions from Islington
Does a longer lantern need extra support?
Long lanterns use intermediate rafters inside the lantern itself. The roof structure around the opening must be designed to carry the lantern's weight; your builder or engineer sizes the trimmers.
What is the most common rectangular roof lantern size?
Sizes of 1000 × 2000 mm and 1500 × 2500 mm are common standard sizes for kitchen and dining extensions, but the right size is the one that matches your kerb. If your kerb is not built yet, our sizes guide helps you pick a standard size first.
Is it worth having solar-control glass in Islington?
With the midsummer sun about 61.9° high at noon, roof glass in Islington gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Do I need planning permission for a roof lantern in Islington?
Often not, but it depends on the roof, the property and whether it is listed or in a conservation area. Check with your district, borough or unitary council before ordering.